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Find magnetic field at O....

Find magnetic field at O.

A

`(mu_0i)/(2piR)[-1/sqrt(2)+pi]`

B

`(mu_0i)/(2piR)[pi-1]`

C

`(mu_0i)/(2R)`

D

`(mu_0i)/(2piR)[1/sqrt(2)+pi]`

Text Solution

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The correct Answer is:
D
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